Bokutachi no Sensou

Bokutachi no Sensou(僕たちの戦争)

TBS' Boku Tachi no Senso (Sep 17, 9 p.m.) features a fictional young man, Kenta (Mirai Moriyama), who accidentally slips back in time from 2006 to 1944 shortly after seeing a sudden lightning flash while surfing. Soon he finds he has mysteriously traded places with a young soldier, Goichi (also Moriyama), who was doing flight training over the same area of the sea where Kenta was surfing. (Source: Drama Wiki)